| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2015-11-10 |
| タイトル |
|
|
タイトル |
正方形断面柱に発現するウェークギャロッピングの振動応答特性 |
|
言語 |
ja |
| タイトル |
|
|
タイトル |
Response characteristics of wake galloping of two square prisms to their relative position and flow velocity |
|
言語 |
en |
| 言語 |
|
|
言語 |
jpn |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Wake galloping |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Two square prisms |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Tandem and staggered arrangement |
| キーワード |
|
|
主題Scheme |
Other |
|
主題 |
Flow-induced vibration |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| アクセス権 |
|
|
アクセス権URI |
open access |
| 著者 |
高井, 和紀
羽二生, 博之
小畑, 芳弘
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
In this experimental study, fluid dynamic response characteristics of wake galloping between two square prisms of same size in tandem and staggered arrangement to their relative position and free stream velocity were investigated. An immovable square prism of size d was fixed at upstream side and another vibratile square prism was placed at downstream side. The relative position of the vibratile downstream prism to the upstream prism was varied in the range from 1.6 d to 3.1 d in stream-wise direction, and in the range from 0.0 d to 2.1 d in cross flow direction. The vibratile prism at downstream side is elastically supported at its both end and is ristricted to vibrate in only cross-flow direction. Instantaneous displacement of vibratile prism was measured by means of Laser Displacement Anemometer, and degree of vibration was evaluated by rms value of the fluctuating displacement. At first, response characteristics of wake galloping to relative position and flow velocity were investigated by free-vibration experiments in tandem and staggered arrangements using a wind tunnel. From the experiments, it was found that the response characteristics can be classified into three patterns in relation to relative positions and free stream velocities. Then the wake galloping phenomena occurred in the free-vibration experiments were reproduced by forced-vibration experiments in a water channel to conduct flow visualization. The visualization results well explained the phenomena observed in the wind tunnel experiment. |
| 書誌情報 |
日本機械学会論文集
巻 80,
号 813,
p. FE0116,
発行日 2014-05
|
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
http://doi.org/10.1299/transjsme.2014fe0116 |
| 権利 |
|
|
権利情報 |
c 2014 一般社団法人日本機械学会 |
| 出版者 |
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|
出版者 |
一般社団法人日本機械学会 |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
publisher |
| 出版タイプ |
|
|
出版タイプ |
VoR |
|
出版タイプResource |
http://purl.org/coar/version/c_970fb48d4fbd8a85 |
2014_ 正方形断面柱に発現するウエークギャロッピングの振動応答特性 .pdf (785.2 kB)
